Maximum-traction truck.



PA'IBNTED SEPT. 22, 1903.

No. 739,364. v

- G. F. UEBELAGKER.

MAXIMUM TRACTION TRUCK:

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. PATENTED SEPT. 22,1903. G. R'UEBELAGKER.

MAXIMUM TRACTION TRUCK.

APPLICATION FILED AUG. 25, 1898.

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HO MODEL.

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PATBNTED SEPT. 22,1903,

0. F. UEBELAGKBR. MAXIMUM TRACTION imex.

APPLIOATIOKI'ILB D AUG. 25, 1898.

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PATENTED SEPT. 22,1903.

a. F. UEBELAGKER; MAXIMUM TRACTION TRUCK.

APPLIGATION FILED AUG. 25, 1898.

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, LUNITED STATES:

Patented September 22, 1903.

iP-ATENT OFFICE.

CHARLES F. UEBELAGKER, on KINGSTON, ,NEW YORK, ASSIGNOR TO. THE PECKI-IAM MOTOR TRUCK AND WHEEL COMPANY, on NEW YORK, N. Y.

MAXIMUM-TRACTION TRUCK;

SPECIFICATION forming part of Letters Patent NO. 739,364, dated September 22, 1903..

Application filed August 25, 189i8i Se iial No. 889,505. (No model.)

T aZZ whom it may concern:

Be it known that I, CHARLES F. UE'BnLAcK ER, of Kingston, Ulster county, Stateof New York, have invented certain new and'useful Improvements in Maxi mu in-Traction Trucks,

.of which the following is a specification.

This invention relates to car-trucks of the maximum-traction type used in pairs under a car-body and adapted to be propelled by IO electric motors. The object of the invention is to devisea swivel-truck to meet the requirements for a double truck capable of handling cars on heavy grades when each truck is equipped :5 with one electric motor only.

A further object is to reduce the height of the car-body from the track as low as the m0- tors will allow without increasing the width of the car-body. I

A further object is to relieve the truckwheels and car-body from side thrusts when rounding curves and to obviate the necessity of adding weight to the pilot-wheels to pro-i vent them from jumping the track.

I accomplish these and other useful objectsby the means hereinafter described and shown in the accompanying drawings, said drawings illustrating the preferred manner in which my present improvements are utilized.

Trucks of this type have been heretofore constructed with side bearings, but have been found objectionable because of the tendency of the small wheels to jump the track and the excessive cost of maintenance. My present,

5 improvements overcome these objections and embody, among other features, a center-bearing swing-bolster and a two-part 'slide at-; tached to the car-body and the true]; and ar-' ranged to guide the swing of the truck under driving-wheels being of sufficient diameter (thirty or thirty-three inches, as desired) to give the necessary clearance between the track and the motor and the small or idle wheels rot" sufficient diameter (eighteen or twenty inches, as desired) to enable them to swivel under the car-sills.

Two important objects are attained by the employmentin this truck of a center-bearing 6o swing-bolster. By its use the truckwheels and car-body are relieved from side thrusts when rounding curves and the necessity of adding weight tothe small wheels to prevent them from jumping the track is obviated, the

usual practice of adding weight to the small wheels being a disadvantage, since it reduces the traction on the driving-wheels. The center-bearing swing-bolster is arranged as nearthe driving-wheels as practicable and is sup- 7o ported upon suitable springs between transverse transom-bars secured in pockets in the side frames of the truck. These transombars act as a guide for the bolster, preventing it from moving lo'ngitudinully of the car.

' body.

The pivotal bearing of the truck is such as to give a short swing to the driving-wheels,

thus permitting them to swing between the go sills of narrow cars. This bearing is so located as to bring the center ,upon which the 7 car swings near the-center of the drivingaxle. I accomplish this, while at the same time providing a fixed center, by a suitable 5' slide attached to the truck, and preferably to the bolster, located as explained, and having a swing-arm extending toward and near or even over the driving-axle, said slide cooperating with a companion slide secured to the Ice body-bolster. The two slides may be connected together by a king-pin, which serves to fix the center of the swing. The point of the swing may be adjusted and altered as desired to make the swing more or less. These slides secured as described to the body and truck bolsters are of the requisite segmental form and preferably fit one within the other, so that without the addition of a king-pin the truck would swing to the correct center.

In the present embodiment of myinvention the electric motor is arranged outside of the driving-axle and the weight of the car-body is upon the swing-bolster near thedrivingwheels. By this arrangement there is obtained a larger percentage of traction on the driving-wheels than can be obtained by any other arrangement without danger of derailment. The application of the weight of the car-body and load is such that the usual spring-pressu re is not required over the small wheels to keep them on the track, thereby i11- creasing the traction on the driving-wheels.

The brake mechanism herein shown and described is specially adapted for the present truck structure. The brake-beams are carried in gravity'slides instead of by links or other movable elements, thereby materially reducing the wearing parts of the brake-rigging. The operation of the brake connections is such that the pressure of the shoes can be applied to the large or driving wheels and to the small or pilot wheels in proportion to the weight they carry, thus preventing the wheels from sliding and flattening.

WVhen this truck is used for conduit-railways, I have combined with the truck structure a novel means whereby the current-collecting device or plow may be supported between the axles, as hereinafter described.

In the accompanying drawings, which form a part of this specification, Figure 1 is a plan View of a maximum-traction truck embodying my improvements. Fig. 2 is a side elevation of Fig. 1. Fig. 3 is a section on the line 3 3 of Fig. 1. Fig. 4 is a cross-section on the line 4. 4 of Fig. l, and Fig. 5 is a longitudinal section on the line 5 5 of Fig. l somewhat enlarged.

In the several views corresponding parts are represented by the same numerals of referenee.

Referring to the drawings, 6 6 indicate the side frames, each consisting-of a casting comprising the pedestal 6 for the journal-box of the driving-axle and the pedestal 6 for the journal-box of the pilot-axle. These side frames are made of solid steel castings and are supported upon springs bearing upon the jonrnal-boxesiu the pedestals. These springs 'are suificiently strong to carry the weight of the truck and also the car-body. In the pedestal 6 its pocket over the journal-box is provided with a spiral spring 7, while in the podestal G spiral springs 7" are arranged by the sides and not over the journal-box, and this arrangement is preferable. It is to be understood that the side frames 6 are so constructed and proportioned that they will be sufficiently low to swing under the run-boards of open cars when the trucks are turningacurve. The side frames are joined together and braced transversely at the pilot-wheel end of the truck by the beam 8, whose ends are turned parallel with the side frames and bolted thereto, as at S At the drivingwheel end of the truck the side frames are connected together and braced by the flat bar 9, set on edge at its central portion and at its ends twisted one-half around to bring the width of the bar at its ends parallel with the top edges of the side frames, which are provided with horizontal slots into which the fiat ends 9 of the bar 9 are seated and secured. This mode of connecting the side frames at the motor end of the truck is novel, and it furnishes a rigid and strong support for the appliances which hold up the outside or nose of the motor.

To provide a support of the proper elevation on the side frames 6for the transom-bars 11, which are arranged transversely of the truck near the driving-wheels and Whichsupport the swing-bolsterand alsotheinnerends ot' the longitudinal bars of the electric-plow support, there are employed castings 10, which straddle the side frames and are secured thereto by the bolts 1O passing through said castings beneath the lower edge of the side frames. This construction does not weaken the side frames, as no bolt-holes are made in the latter when securing castings 10 in position. The top edges of the castings 10 are provided with pockets 10, which receive the ends of the transom-bars 11 and which are securedin said pockets by bolts, as shown. It will be'obvious that the transom-bars 11, in addition to their particular functions above indicated, serve to brace the truck frame transversely between its ends.

The axles of the truck are indicated by 12 12, the former carrying the driving-wheels 13,wl1ich should be snfficiently large (thirty or thirty-three inches in diameter, as desired) to give the necessary clearance between the track and the motor,and the lattercarrying the small or pilot wheels 14, whose diametershould be sufficiently small-say eighteen or twenty inches-to permit them to swivel beneath the sills of the car. The journal-boxes in the pedestals are indicated by 1515. At the bottoms of the pedestals there are detachable pieces 16 to permit the truck-frame to be lifted from the running-gear when desired.

This truck is designed for carrying a single electric motor, and this is arranged outside of the d riving-wheels 13, being supported on the axle 12, with its outside or nose elastically suspended on the end beam 9. The weight of the motor 17 increases the traction on the large or driving wheels, as is obvious. The means for supporting the nose of the motor consists of the bar 18, set on edge and provided with the required opening or openings to receive the projection or projections on the motor, the ends of said bar being twisted so IIS ' 11, which serve as a guide for it, preventing as to bring the width of the bar atits ends at right angles to its main portion. This motorsupporti'n'g bar 18 ismounted on the brackets 18, whichare bolted to the end bar 9 and which are equipped with spiralsprings through which pass bolts 18". The perforated ends of the motor-supporting bar are slipped over the bolts 18 and the several parts held together by nuts at top and bottom, all as shown in Fig. 3, for example. The requisite elastic support for the motor 17 is thus provided.

To obtain a sufficiently-short swing to the driving-wheels when rounding a curve in order to permit such wheels to operate between the sills of a car of the usual width brought as near the track as the motor will allow, it is essential that the pivotal bearing of the truck should be near the center of the driving-axle. In carrying this feature of my invention into practice, while at the same time providing a fixed center upon-which the car swings, I make use of 'a two-part segmental slide, one part attached to the truck and the other to the car-body and so arranged and adjusted as to guide the swing of the truck under the car-body. In this embodiment of my invention one part of the segmental slide is secured to the center-bearing swing-holster.

The bolster is indicated at 19 and is ar-:

ranged to operate between the transom-bars it from moving longitudinally of the car. The bolster 19 is located as near the drivingwheels of the truck as possible, so as to place a greater proportion of the load on the driving-wheels than on the pilot-wheels. The bolster is supported centrally on the halfelliptic spring 20, which is connected thereto by the strap 21, the ends of said half-elliptic spring fitting in sockets 22 on'the springplank 23, which is suspended from the transoms 11 by a series of links 24. These links 24, four being preferably made use of, as shown, are normally slightly inclined outthe truck runs into a curve. the half-elliptic spring 20 the spring-plank is provided with pockets which receive spiral springs25, extending between the spring .plank and the bolster 19 and having their upper ends confined in pockets on the under side of the bolster. The location of the spiral springs 25 with relation to the bolster which they assist in elastically supporting is suchthat there is permitted to the bolster a slight rocking motion which, as it permits the wheels on one side of the truck to rise independently of the car-body, adds greatly to the easy riding of the car. In the pockets on the springplank'which receive the spiral springs 25 I thrusts when rounding curves. It also avoids the necessity for adding weight to the small wheels (which reduces the traction on the large or driving wheels) to prevent said wheels from jumping the track. j l

The segmental slide before referred to will be constructed, preferably, as shown in the drawings. It is shown as composed of male and female parts attached, respectively, to the truck and car-body bolsters and provided with swing-arms extending toward the axle of the driving-wheels.

' The lower slide-plate is indicated at 27 and its arm at 29 and the upper slide-plate at 28 and its arm at29, the said arms extending 1 near to the center of the driving-axle 12. The slide-plates are made with male and female connections, as shown, Fig. 3, and as they wholly cover each other except when the truck is rounding a curve their working sur faces are protected from dust and grit;v The under plate 27 may be provided with an oilwell for lubricating the parts. The upper slide-plate 28 is attached to the car;body or to its bolster by the bolts shown, while the lower plate 27 is attached to the truck near the driving axle l2, and in the present in stance to the swing-bolster, to which it is hinged, as shown at 31, one portion'of the hinged connection being secured to the bolster 19 and the other portion to the slide-plate I 27, as seen in the drawings. While this hinged connection between the slide and bolster or truck is not absolutely essential, it is desirable, since it makes the connection less rigid. The arms 29 294 are perforated at 30 to receive the king-pin 30, by which'a suitable connection betweenthe parts is provided and the center of swing is fixed. The arms of the slide are shown extending near to the center of the driving-axle, but they may extend sufficiently to bring the center 'upon which the car swings immediately overthe driving-axle. I the truck being thus brought in close proximity to the center of the driving-axle, the swing of the driving-wheels 1 3 is comparatively short, sufficiently so to enable them to swing between the sills of cars of the usual width. 7 The car-bodies may thus be brought as near the track as the motors will allow. The slide 27 may carry the weight of the carbody'or not, according to the manner in which it is connected to the truck. Theswing-arms may also be made separate from the slide and secured thereto in any suitable way, and a plain slide, as distinguished fromone that is. grooved, may beemployed with a project- 'ing arm to receive the king-pin, thoughaf grooved slide is the preferable form. Fur- IIO The fixed pivotal bea'ringlof .thermore, when a two-part slide ismade use of with male and female connections the.

truck would swing to the correct center with-;

ble of sliding on the rod 33.

coupling 35.

-no releasing-springs are required.

with a center hearing-bolster that is not a swing-bolster or with a side bearing-bolster as well. In any case the slide would be located near the driving-axle and arranged to bring the center upon which the car swings near the center of said axle.

The appliances for supporting the electric plow are so combined with this swivel-truck that they carry the plow between the axles of the truck and not at its end. The support comprises the parallel bars 32, secured at their outer ends to end beam 8 by suitable brackets 32, bolted tosaid beam, Fig. 1, and at their inner ends to the depending stirrups 3.4, riveted to the transom-bars 11, Fig. 3. To the bars 32 are bolted in suitable brackets 33 the parallel rods 33, which carry the electric-plow support 36 between the axles of the truck. The rods 33 are arranged the proper distance apart. To the sliding coupling 35 on one of the rods 33 is pivoted the inner end of the support 36, such end being adapted to swivel on its coupling, the latter being capa- The forked opposite end of the plow-support 36 is provided with elongated slots 36, which receive the studs 35 at the top and bottom of the sliding By this construction the plowsupport 36 is adapted to accommodate itself to the movements of the truck and to the various relations assumed by the truck with reference to the slot in the truck in which the current-collector operates.

The brake mechanism illustrated is particularly adapted for the truck herein shown and described, in which are employed driving-wheels of one size and pilot or idle wheels of asmaller size. The brake-rigging is of the usual upright-lever type, my improvements residing, however, in the means whereby pressure is applied to the brake-shoes in progravity-slide supports 39, within the inclined grooves of which the brake-beam operates.

To near the ends of the brake-beam are bolted the brake-shoes 38 and also the brackets 37, through which the brake-rod 40 passes and by means of which rod the brake-shoes 38 are applied to the driving-wheels. By means of the nuts on rod 40 on each side of the bracket 37' the proper relation of the brake-shoes 38 to the wheels 13 is determined. By carrying the brake-beam in gravity-slides instead of supporting it by links the wearing parts of the rigging are reduced to few in number and The rattling and kicking incident to link hung brakes are also avoided.

The inner end of rod 40 is connected to the yoke 41, (the construction being the same on both sides of the truck,) which is connected to the upright lever 47 by the pin 47 the said lever being supported by the bracket 39*,bolted to the side frame of the truck and depending downward. The upright lever 47 is fulcrumed in the lower portion of bracket 39, beneath the yoke 41, and passes through said yoke and is pivotally connected thereto. It will be seen that the upper ends of the levers 47 are normally near the longitudinal center of the truck and near the bolster. The floater 48, attached to the upper ends of said levers, is therefore near such center and near the bolster. By this arrangement the attachment of rod 49 (which extends to the swaybar at the center of the car) to the floater is so near the center on which the truck swings that no provision is necessary for compensating for such swing. The rod 49 can accordingly be connected directly to the center of the floater 48, as shown in the drawings, Fig. 1.

Depending from the yoke 41, between its point of attachment to the rod 40 and its pivotal connection to the lever 47, is the bracket 41. This bracket is an integral part of the yoke, and it is perforated at its end to permit the passage therethrough of the screwthreaded rod 42, to one end of which issecured the pilot wheel brake-shoe 44. The brake-shoe 44 is suspended in proper relation to the wheel 14 by the link 45, hinged to the bracket 46, which is bolted to the side frame of the truck. On the screw-threaded rod 42, be tween bracket 41 and the shoe 44, is arranged the spring 43 between the washers 43 and 43 The tension of spring 43 is regulated by means of the nut 43 working against the washer 43. On the end of the rod 42 in front of bracket 41 are nuts 42*, (one of which is a jam-nut,) by means of which the relation of the brake-shoe 44 to the wheel 14 is adjusted to determine the initial pressure of the brake on the pilot-wheels. It will benoticed that the brake-shoes for the larger wheels are on the outside or at the motor end of the truck and that the brake-shoes for the pilot-wheels are on the inside. A pull upon the rod 49 will advance lever 47, fulcrumed below its pivotal connection with the yoke 41, and thus moving the yoke toward the pilot-wheelsthe brake-shoes 38 will be applied to the larger wheels 13 with normal pressure. The bracket 41*, depending from the yoke 41, moving with the yoke against the washer 43", will compress the spring 43 simultaneously with the application of the brake-shoes to the driving-wheels, and hence apply the brake-shoes 44 to the pilot-wheels sion of the spring 43 and less than the pres sure with which the brake-shoes are applied to the driving-wheels, the pressure of the brake-shoes on the pilot-wheels being in creased with the compression of the spring 43. By this means the wheels carrying the with an initial pressure regulated by the tenlighter load are prevented from sliding, and consequently flattening.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isv I 1. In a car-truck, the combination with the side frames connected together by transverse end beams, of separate castings straddling the side frames and provided with pockets at the top and secured in position by bolts passing through the castings beneath the lower edges of the side frames, and transverse transombars secured in the pockets of said castings. 2. In a car-truck, the combination with the side frames provided in their top edges at the 'motor end of the truck with horizontal slots,

provided with horizontal slots in their top edges at the motor end of'the truck,of a flat bar set on edge and twisted one-quarter aroundto bring the width of the same at its ends par allel with said slots in which slots the endsof the bar are secured, the said frames connected together at the opposite end of the truck by a beam whose ends are turned parallel with v the sides of the frames and bolted thereto.

4. In a car-truck, the combination with the side frames provided in their top edges at the motor end of the truck with horizontal slots, a flat bar set on edge and twisted one-quarter around to bring the width ofthe same at its ends parallel'with said slots in which slots the ends of the bar are seated and secured, and a 5. In a car-truck, the combination withthe side frames comprising pedestals, the axles, axle-boxes and wheels, one set of such wheels being the driving-wheels, of a transverse bolster located nearer to the driving-wheels than tothe other wheels and adapted to carry the weight of the car-body,-and a slide attached to the truck between the side framesand be-' tween the sets of'wheels, and a part attached to the car-body near the driving-axle and adapted to bring the center upon which the ear swings nearer to the center of the driving-axle than is said bolster.

6. In a car-truck, the combination with the side frames comprising pedestals, the axles,

, axle-boxes and wheels, one set of such wheels being the driving-wheels, of a transverse bolster located nearer the driving-wheels. than to the other wheels and adapted to carry the weightof the car-body at its center, a slide attached to the truck and car-body near the near the center of the driving-axle.

7. The combination, in a truck, of a bolster, a slide having a bearing-surface and a .part extending therefrom to near the middle of oneof the truck-axles,-said slide being connected to the truck bya hinge connecting it to said bolster, and a cooperating slide adapted to be connected to a car-body.

8. In a car-truck, the combination with the side frames comprisingpedestals, the axles,

. axle-boxes and wheels, one setof such wheels being the driving-wheels, of a transverse bolsterlocated near the driving-axle and adapted to carry the weight of the car-body atitscenter, a two-part slide, one part of which is attached to thetruck and the-other part of which is attached to the car-body near the driving-axle, and the parts being provided with arms extending. toward the axlenand .nearer to the axle than said bolster, and a king-pin connecting the ends of said arms nearest to the driving-axle together, whereby the center upon which the roar swings is brought near the centerof the driving-axle, one member of said slide provided with a groove and the other member with a projection operating in said groove.

9. In a car-truck, the combination of a center bearing-bolster, a male and female part slide, one part being connectedto the bolster, and the other part adapted to be connected to a car-body, the male and female parts of the slide forming segments of a circle whose center is at one side of the bolster and nearer ,the center of the driving-axle than the bolster-bearing.

10. In a car-truck, the combination withthe side frames comprising pedestals, the axles,

axle-boxes and wheels, one set of such wheels being the drivingwheels, and an electric motor supported on the truck-frame outside the driving-wheels, of a transverse bolster 10'- cated between the axles and near the drivingaxle and adapted to carry the weight of the car-body at its center, and a two-part segmental slide attached to the truck and carbody the center of the segments being nearer truck-frameoutside the driving-wheels, of a .transverse bolster located near the drivingvided with swing-arms extending toward and IIO nearer the driving'axle than the bolster, and a king-pin connecting the said arms at their outer ends to fix the center upon which the car swings near the center of the driving-axle.

12. In a car-truck, the combination with the side frames, the axles, axle-boxes and wheels, one set of such wheels being the drivingwheels,and an electric motorsupported on the truck-frame outside the driving-wheels, of a transverse bolster located near the drivingwheels and adapted to carry the weight of the car-body at its center and a segmental slide attached to the truck and to the car-body near the driving-axle and adapted to bring the center upon which the car swings near the center of the driving'axle, one member of said slide provided with a groove forming an arc of a circle whose center is nearer the center of the driving-axle than the bolsterbearing, and the other member with a projection fitting in said groove.

13. In acar-truck, the combination with the side frames, the axles, axle-boxes and wheels, one set of such wheels being the drivingwheels,and an electric motor supported on the truck-frame outside the driving-wheels, of a transverse bolster located near the drivingwheels and adapted to support the car-body, and a segmental slide attached to the truck and car-body near the driving-axle and provided with swing-arms extending toward and near the driving-axle, a king-pin connecting the said arms at their outer ends to fix the center of the swing nearer the center of the driving-axle than the bolster, one part of said slide provided with a groove and the other part with a projection operating in said groove.

14. In acar-truck, the combination with the side frames, the axles, axle-boxes and wheels, one set of such wheels being the drivingwheels, of a transverse bolster located near the driving-wheels and adapted to support the car-body, and a two-part slide one part being attached to the car-body, and the other part being attached to the bolster by a hinged connection, near the driving-axle, and provided with swing-arms extending toward and nearer the driving-axle than said bolster and a king-pin connecting the said arms at their outer ends to fix the center upon which the car swings near the center of the driving-axle.

15. In acar-truck, the combination with the side frames, the axles, axle-boxes and wheels, one set of such wheels being the drivingwheels, of a transverse swing-bolster suspended from the side frames near the driving-axle and adapted to supportthe weight of the car-body at its center, and aslide attached to said bolster and car-body near the drivingaxle and provided with arms extending toward and near the driving-axle and a kingpin connecting the said arms at their outer ends to fix the center upon which the car swings near the center of the driving-axle.

16. In a car-truck, the combination with the side frames, the axles, the axle-boxes and wheels, one set of such wheels being the driving-wheels, of a transverse swing-bolster suspended from the side frames near the driving-wheels and a segmental slide attached to said bolster and to the car-body near the driving-axle, one part of said slide being grooved and the other part provided with a projection fitting said groove.

17. In a car-truck, the combination with the side frames, the axles, axle-boxes and Wheels, one set of such wheels being the drivingwheels, of a swing-bolster suspended from the side frames near the driving-axle and adapted to support the weight of the car-body, and a segmental slide attached to said swing-bolster and to the car-body and provided with arms extending toward and near the driving-axle and a king-pin connecting said arms at their outer ends, one part of said slide provided with-a groove and the other part with a projection fitting said groove.

18. In a car-truck,the combinatiouwith the side frames, the axles, axle-boxes and wheels, one set of such wheels being the drivingwheels, of atransverseswing-bolster supported by the truck-frame near the driving-axle, and an electric motor supported on the truckf-rame outside the driving-axle, of a slide connected to said bolster and to the car-body and provided with arms extending toward and near thedriving-axle and a king-pin connecting said arms together at their outer ends.

19. In a car-truck,the combination with the side frames, the axles, axle-boxes and wheels, one set of such wheels being the drivingwheels, of a transverse swing-bolster suspended from the truck-frame near the driving-axle and supporting the weight of the carbody, an electric motor supported by the truck outside the driving-axle, and a slide attached to the swingbolster and car body and provided with arms extending toward and near the driving-axle, and a king-pin connecting said arms together at their outer ends, one part of said slide provided with a groove and the other part with a projection operating in said groove.

20. In a car-truck, the combination with the side frames, a pairof driving-wheels and their axle and a pair of pilot-Wheels and their axle, the pilot-Wheels being of less diameter than the driving-wheels, of a transverse bolster suspended from the truclc-frame near the driving-axle, an electric motor sleeved to the axle of the driving-wheels with its opposite side supported on the end beam of the truckframe outside the driving-wheels, and a slide attached to the bolster and car-body and provided with arms extending toward the driving-axle and a king-pin connecting said arms together.

21. In a ca1'-truck,tl1e combination with the side frames, a pair of driving-wheels and their axle and a pair of pilot-wheels and their axle, the pilot-wheels being of less diameter than the drivingwheels, of a transverse bolster suspended from the truck frame near the IIO driving-axle, an electric motor sleeved to the axle of the driving-wheels with its opposite side supported on the end beam of the truckframe outside the driving-wheels, and a slide attached to the bolster and car-body and provided with arms extending toward and near the driving-axle, one part of said slide provided with a groove and the other part with a projection operating in said groove.

22. In a car-truck, the combination with the side frames, a pair of driving-wheels and their axle, and a pair of pilot-wheels and their axle, the pilot-wheels being of less diameter than the driving-wheels, and a transverse bolster suspended from the truckframe near the driving-axle, an electric motor sleeved to the axle of the driving-wheels with its opposite side supported on the end beam of the truckframe outside of the driving-wheels, and a slide attached to the bolster and car-body, one part of said slide provided with a groove and the other part with a projection operating in said groove.

23. In'acar-truck, the combination with the side frames, a pair of driving-wheels and their axle, and a pair of pilot-wheels and their axle, the pilot-wheels being of less diameter than the driving-wheels, and a transverse bolster suspended from the truck frame near the driving-axle, an electric motor sleeved to the axle of the driving-wheels with its opposite side supported on the end beam of thetruckframe outside of the driving-wheels, and a slide hinged to the bolster and attached to the car-body and adapted to guide the swing of the truck under the car-body and to bring the center upon which the car swings near the center of the driving-axle.

24. In a cat-truck, the combination with the side frames, a pairof driving-wheels and their axle, and a pair of pilot-wheels and their axle, the pilot-wheels being of less diameter than the driving-wheels, a pair of transom-bars supported on the side frames near the drivingaxle, a spring plank suspended from said transoms by pairs of links and equipped with a system of springs, and a bolster supported on said springs between the transoms, of a slide attached to said bolster and adapted to be connected to the car-body and provided with arms connected together by a king-pin, wherebythe center upon which the car swings is brought near the center of the driving-axle and the necessary traction on the drivingwheels is obtained.

. 25. In acar-truck, the combination with the side frames, a pair of driving-wheels and their axle, and a pair of pilot-wh eels and their axle, the pilot-wheels being of less diameterthan the driving-wheels, a pair of transom-bars sup ported ontheside frames near the drivingaxle, a spring-plank suspended from said transoms by pairs of links'an'd equipped with a system connected together by a king-pin whereby the center upon which the car swings is brought near the center of the driving-axle, one part of said slide provided with a groove and the other part with aprojection operating in said groove.

26. In a car truck, the combination with the side frames, a pair of driving-wheels and their axle, and a pair of pilot-wheels and their axle,

the pilot-wheels being of less diameter than the driving-wheels, a pair of transom-bars supported on the side frames. near the driving-axle, aspring-plank suspended from said transoms by pairs of links and equipped with a system of springs, and a bolster supported on said springs between the transoms, of a slide attached to said bolster and adapted to be connected to the car-body whereby the center upon which the car swings is brought near the center'of the driving-axle, one part of said slide provided with a groove and the other part with a projection operating in said groove.

27. In a car-truck, the combination with the side frames, a pair of driving-wheels and their axle, and a pair of pilot-wheels and their axle, the pilot-wheels being of less diameter than the driving-wheels, a pair of transombars supported on theside frames near the driving-axle, a spring-plank suspended from said transom-bars by links having normally a slight outward inclination, a half-elliptic spring mounted centrally on the spring-plank, spiral springs arranged on the spring-plank near the ends of the same and a bolster supported by said springs, of a slide connected to the bolster and adapted to be connected to the car-body,.whereby the center upon which the car swings is brought nea'r the center'of the driving-axle and the necessary traction on the driving-wheels is obtained.

28. In a car-truck, the combination with the side frames, a pair of driving-wheels and their axle, and a pair of pilot-wheels and their axle, the pilot-wheels being of less diameter than the driving-wheels, a pair of transom-bars supported on the side frames near the driving-axle, a spring-plank suspended from said transom-bars by links having normally a slight outward inclination, a half-elliptic spring mounted centrally on the spring-plank, spiral springs arranged on the spring-plank near the ends of the same, a bolster supported on said springs, and an electric motor sleeved to the axle of the driving-wheels with its opposite end supported on the end beam of the ICC adapted to operate within the space between such axles.

30. The combination with the truck-frame, of an electric-plow support adapted to carry the plow between the axles of the truck, the same consisting of a pair of parallel bars secured longitudinally beneath the truckframe, and a pair of parallel rods mounted on said bars transversely of the truck-frame and provided with sliding brackets and a suitable plow-support pivotally connected to said'brackets, the connection to one of them being made by elongated slots formed in the end of the plowsupport, whereby the plowsupport may accommodate itself to the movements of the truck and to the various relations assumed by the truck with reference to the slot in the track.

31. The combination with the truck-frame, of parallel bars 32 secured at their outer ends to the end beam of the truck and at theirinner ends to stirrups depending from a transverse member of the truck-frame, parallel rods 33 secured to said bars 32 between the axles of the truck, sliding couplings on said rods and an electric-plow support having one end connected to one of said couplings to swivel thereon and its opposite end provided with elongated slots which receive studs on the coupling, whereby the plow-support may lengthen between the rods 33 as it is carried to one side or the other of the truck.

32. In combination with a car-truck provided with a pair of driving-wheels and with a pair of pilot-wheels of smaller diameter than the driving-wheels, of a slide comprising two cooperating parts, one part connected to the truck between its side frames and nearer the driving-axle than the pilot-axle,

and the other part adapted to be connected to the under surface of the car-body near the driving-axle, whereby the center upon which the car swings is brought near the center of the driving-axle.

33. The combination of the wheels, axles and axle-boxes, the side beams of the truck supported on the axle-boxes, a motor-su pporting frame in front of the drivers and attached to the ends of the side beams, said motor-supporting frame having the inclined portions arranged diagonally and extending from the side beams of the truck inwardly toward the longitudinal axis thereof, and a yokecarried by the frame to which the motor is attached.

34. The combination of the wheels, axles and axle-boxes, the side beams supported by the axle-boxes, and a motor-supporting frame, the opposite ends of which are attached to the ends of the side beams of the truck and areinclined inwardly toward thelongitudinal axis of the truck and are connected together at their inner ends.

35. The combination of the wheels, axles and axle-boxes, the side beams of the truck supported on the axle-boxes, a motor-supporting frame comprising a bar having a straight front portion and inclined opposite ends attached to the front ends of the side beams.

36. In a car-truck frame, the combination With side beams having their ends broadened laterally to form horizontal seats, of an end bar, the ends of which are secured to the broadened ends of the side beams.

37. Ina car-truck frame, the combination with side beams having their ends broadened laterally to form horizontal seats, and provided with depressions in said broadened ends, of an end bar, the ends of which are socured in the said depressions.

38. In a car-truck frame, the combination with an end bar having broadened or flattened ends, of the side beams having their ends broadened laterally and formed or provided with horizontal depressions to receive the ends of the end bar.

39. In a car-truck frame, the combination with an end bar having its central portion set at about a right angle to the horizontal plane of the truck-frame and its ends in the same horizontal plane with said truck-frame, of the side beams having broadened ends to form seats for the ends of the end bar.

40. In a car-truck frame, the combination with an end bar having its central portion set at about a right angle to the horizontal plane of the truck-frame and its ends in the same horizontal plane with said truck-frame, of the side beams having broadened ends provided with depressions in which the ends of the end bar are seated.

41. In a car-truck frame, the combination with the side beams thereof, the ends of said beams being flared or broadened to form bearing and attaching seats, of a bar having its ends inclined inwardly toward the longitudinal axis of the truck-frame and secured to and upon the flared or broadened ends of said side beams.

42. In a car-truck frame, the combination with the side beams thereof, of an end bar connecting the ends of said side beams, the central portion of said barbeing set at about a right angle to the horizontal plane of said truck-frame, and having its ends twisted or turned to lie in the same horizontal plane with the truck-frame, the ends of said barbeing secured to the ends of the side beams whereby a rigid connection is formed with the ends of the side beams and a rigid support for the yielding mechanism supporting the noses of the motor.

43. In a car-truck frame, the combination with the side beams thereof, the ends of said side beams being horizontally flared or broadened to form bearing and attaching seats, of a bar having its central portion set on edge and its ends twisted orturned to form widened bearing-surfaces adapted to be seated on and connected to the flared or broadened ends of the side beams.

44. In a car-truck frame, the combination with the side beams thereof, the ends of said side beams being horizontally flared or broadened, said flared or broadened portion being provided with recess-seats in itsupper surface, of a bar having its central portion set on edge and its ends twisted or turned to form widened bearing-surfaces adapted to be seated in the recessed seats and connected to the side beams.

45. In a car-truck frame, the combination with -the side beams thereof, the ends of said side beams being horizontally flared or broadened, said flared or broadened portion being provided with recess-seats in its upper surface, of a bar having its central portion set on edge and its ends twisted or turned to form widened bearing-surfaces, said ends being also inclined inwardly toward the longitudinal axis of the truck, and secured in the said recess-seats of the side beams.

46. The combination of 'a car-truck and a springextendingtransverselythereofandconnected therewith,with a bolster carried bysaid spring, a car-body above said bolster, and a draw-bar connected with said bolster and with said car-body,substantially as described. 47. ha car, a drawing device consisting of a bar extending from a point adjacentthe bolster toward an axle, another bar over the said first bar and extending away from the said axle, and a pivot-bolt passing through apertures in their ends adjacent the axle.

4.8. In a car, the combination with a truck and a car-body, of a member secured to the car-body adjacent its bolster and projecting toward the axle, another member secured to the truck adjacent its bolster and lying'beneath the former, and means for pivoting said members together at their extended ends.

Signed at New York, county and State of New York, this 15th day of August, 1898.

CHARLES F. UEBELACKER.

Witnesses:

J. E. MELBOURNE, M. O. PINOKNEY. 

